package com.mianshi;

import java.util.Scanner;

public class bilibili3 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        for(int i = 0; i < n; i++){
            int x = in.nextInt();
            int y = in.nextInt();
        }
    }
}
